Rotary pump



J. F. SMITH.

ROTARY PUMP.

APPLICATION FILED MAR. 5, 192x.

/ 1 9% 1 7 Q 1 8 Patented May .23,

STATES JOHN F. SMITH, OF WOOSTER, OHIO, ASSIGNOR OF ONE-HALF TO CHARLESM, JEFFRIES,

OF APPLE CREEK, OHIO.

ROTARY PUMP.

L HTAlS.

Application filed March 5, 1921.

To 11/] w/mm i2 may concern:

lie it known that 1, JOHN F. SMITH, a citizen of the l'nited States,residing at Wooster. in the county of \Vayne and State of Ohio. haveinvented a new and useful Rotary Pump. of which the following is aspecification.

My invention relates to improvements in rotary pumps or engines, andparticularly to improvements upon my former invention for like use setforth in Letters Patent of the l nited States, No. 1,045,754, issuedthereon to me November 26, 1912, the main object" of which was toprovide means for keeping the piston automatically in tight engagementwith the cylinder wall of the pump at all times, irrespective of wear,and means for holding the piston on its seat in such manner as to takeup its own wear automatically.

The main ob ect of my present invention is to combine with said means asimple and practical device for largely increasing the pumping capacityand for making the pump cylinder a stationary valve within itself,withot the aid of any other valves or valve connections heretoforerequired, and, secondly, to so construct the cylinder and itsconnections as to avoid the use of bolts, and provide means forthreading the several parts of the mechanism together compactly so as tosimplify its manufacture and increase its durability and efiiciency.

My invention consists principally of the novel construction of the pumpcylinder by coring out the Walls thereofin such manner as to formcavities therein for the passage of water therethrough, and to so dividesaid cavities as to cause both suction and discharge .ofthe water by therevolving eccentric piston within the cylinder with each revolution ofsaid piston; and it further consists in pro viding enlarged and morenumerous openings into said cavities for the inflow and discharge ofWater, thereby largely increasing the capacity of the pump,and theincidental features as hereinafter fully set forth, and stated in theappended claims.

My invention is illustrated by the accompanying drawings in whichsimilar letters and figures of reference indicate like parts.

Referring thereto, Fig. 1 is avertical longitudinal section through thepump casing.

' Fig. 2 is a side view of the pump body, one

side being cut away for better illustration of the interior; and Fig. 31s a horizontal sec- Specification of Letters Patent.

Patented May 23, 1922.

Serial No. 449,997.

, disposed conical socket j at its base J, and a conical opening throughits top N adapted to receive the collar I and stud H about which it isthreaded, as shown in Fig. l.

The members N and J are preferably inserted separately fromthe cylinderand secured thereto by set screws t and g, respectively. Said top N isalso perforated with a plurality of openings through which water isdischarged upwardly from the cavity in the cylinder, as shown by thearrows a a a a. The walls of said cylinder are cored out to formcavities K K therein, which, on one side of the cylinder, open upwardlyfor the escape of water discharged therethrough in the direction of saidarrows, and on the other side of said cylinder the cavities opendownwardly through the walls, and, by suction therethrough, the waterpasses upwardly into and through said cavity in the direction of thearrows a a. The said cavities are divided on one side of the cylinder bya vertical diaphragm M (best shown in Fig. 2), and also by a spiraldiaphragm L, whereby the water below the cylinder is drawn upand thenceinto the pump pipe P, by the.

action of the rotor B within the chamber of the cylinder, as hereaftermore fully described. The tubular caps ,E and F are respectivelyconnected to the top and bottom of the cylinder body A by the threadedconnections shown in Fig. 1, and to the well pipes P and P by similarthreaded joints, so as to make the same air tight and impervious towater; the construction of the cylinder body being such as to admit ofsuch connection, and obviate the use of bolts as hereto fore employed,thus adapting the exterior of said body to fit within an outer casing,such as is commonly used in deep wells, but not herein shown becauseimmaterial except incidentally. A plurality of openings O 0' along eachside of the vertical diaphragm M afiord channels for suction of thewater on one side of the latter, and discharge thereof on the other. Tocause this action of the water the rotor B, having a frusto-conicalbody, and eccentrically disposed within the cylinder, as heretofore, isprovided with a single flat member C, which is loosely mounted to slidelaterally through a slot 7', (Fig. 3) therein, freely, in such manner asto vibrate back and forth therein with its opposite ends snugly againstthe inner wall of the cylinder 10 body.

The rotor B is driven rotarily in the cylinder by means of the shaft Dwhich is secured thereto by being threaded into the stud H, the latterbeing held in vertical position by the collar I, which is tapereddownwardly to fit the conical opening in the plate N, as aforesaid,whereby wear of the parts is taken up automatically. The collar servesthe double urpose of securing the shaft D and stud B in verticalposition, and a slightly wedge shaped connection of said 'stud with theconical opening in the plate N,

' forth by the eccentric action of the rotor body, thereby causing apowerful suction through the perforations O of the inner wall of thecylinder body on one side of the vertical rib or diaphragm M, and a likepowerful draft outwardly and upwardly through the perforations O on theopposite side of said rib, with every revolution of said rotor. Thevertical edges of the member C are preferably slotted to receive a thinwearing member d, which is kept in constant slidable connection with theinner wall of the cylinder body by the springs 61 0, shown in Fig. 3,while travelling thereon in the direction of the arrow I) through theelliptical space Gr around the rotor B.

The vertical rib or diaphragm M and the spiral diaphragm L, which arestationary within the core K in the cylinder body A, unite at top andbottom thereof, and thus afford, in connection with the cored cavities KK, improved means for suction and discharge (constituting a completevalve within said body), and more space for openings through the platesN N, for inflow and outflow ,f water, than would be otherwise possible,thus greatly increasing the capacity of the pump, and diminishin thepower necessary to actuate the rotor by the shaft D, as aforesaid.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is 1. In a device of the characterdescribed, the combination with a cylindrical casing, of a piston rotorseated eccentrically therein, a wing slidably mounted in said rotoradapted to conform with the wall of said conical well, while said rotorrevolves; cavities within the wall of said casing, a vertical diaphragmdividing the cavities longitudinally; a spiral diaphragm in relation tosaid vertical diaphragm, dividing said cavities laterally; openings fromsaid cavities inwardly on both sides of said vertical diaphragm;openings from and into said cavities above and below said spiraldiaphragm, respectively, and means for actuating said piston rotor,substantially as set forth.

2. In a device of the character described, the combination with aconical well, a conical rotor mounted eccentrically therein, a laterallyshiftable wing loosely mounted transversely in said rotor, cavities inthe wall of the casing of said well, a vertical diaphragm, and a spiraldiaphragm connected therewith, separating said cavities, openingsleading into and from said cavities, respectively, above and below thespiral diaphragih, openings inwardly from said'cavities on both sides ofsaid vertical diaphragm,

means for automatically adjusting said rotor vertically, and means forconnecting said casing by threaded connections with adjacent pipecouplings above and below, substantially as set forth and for thepurpose specified.

In witness whereof I hereunto set my hand at \Vooster, Ohio, this 24thday ofDecember, A. D. 1920.

JOHN F. SMITH. In presence of CHARLES C. JoNEs, HIRAM B. SwAR'rz.

